TAILIEUCHUNG - Báo cáo sinh học: "Evolutionary systematic of three species of troglobitic beetles: electrophoretic and morphological evidence B 1 Laboratoire"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Evolutionary systematic of three species of troglobitic beetles: electrophoretic and morphological evidence B 1 Laboratoire | Genet Sei Evol 1990 22 189-203 Elsevier INRA 189 Original article Evolutionary systematic of three species of troglobitic beetles electrophoretic and morphological evidence B Crouau-Roy 1 Laboratoire souterrain du CNRS Moulis 09200 Saint-Girons France Received 29 September 1988 accepted 17 January 1990 Summary - Genic and morphological variations were compared for 3 allopatric and endemic troglobitic beetles of the genus Speonomus by use of an allozyme data set 18 putative loci and 1 based on morphometric characters 16 morphological variables . Allozymic and morphometric relationships were also compared with some aspects of the mating behaviour and considered in relation to the ecology and biogeography of these species. The extent of agreement between the assessments of evolutionary divergence at the genic and morphological levels is discussed. Enzyme analysis revealed pronounced differences in degree of genetic differentiation between the 3 species s coiluvii is the most divergent species with large genetic distances D 1 . Morphometric differentiation between the 3 species assessed on 16 characters is important between the 3 species principally between s zophosinus and the 2 others. The level of congruence is strongly data - set dependent and these results reveal independent trends for the 2 sets of characters. While s zophosinus has diverged little from s hydrophilus on the molecular level the morphometric differentiation between them is high. This pattern may result from different sensitivities of each character set to different components of the environment. troglobitic beetle systematic electrophoretic and morphometric variations Résumé - Systématique évolutive de trois espèces de Coléoptères troglobies analyses électrophorétỉques et morphologiques. Nous avons comparé les variations génétiques et morphologiques de trois espècesde Ọoléoptères troglobies allopatriques et endémiqụes du genre Speonomus sur la base des données allozymiques 18 locus et des .

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